LOCAL CLIMATOLOGICAL DATA Monthly Summary February 2010 Station: Round Rock Latitude: 30° 32' 55" N Longitude: 97° 37' 34" W Elevation (ground): 709 feet Time Zone: Central +--+-------------------------------+----+---------+---------+--+-----------+--------------------+-----------------------------+------+ | | Temperature | |Deg. Days|Precip Ty| | Precip | Pressure | Wind | Sun | | +------+------+------+------+---+ Hu-+----+----+1 fog | S+-----+-----+ Adj. to Sea Level +----+----+---+-------+-------+------+ | | M | M | A | | |mid-| H | C |2 hvy fog| n| | Ice +------+------+------+ Avg| Res|Res| Peak | Minute| Mean | | | a | i | v | | D | ity| e | o |3 thunder| o|Water| plts| | | | | | +---+---+---+---+ | | | x | n | e | | e | | a | o |4 ice plt| w| | | | | | S | S | | S | | S | | I | | D| i | i | r | M | w | M | t | l |5 hail | | E | S | | | M | p | p | | p | | p | | n | | a| m | m | a | e | | e | i | i |6 glaze | C| q | n | M | M | e | e | e | D | e | D | e | D | d | | t| u | u | g | a | P | a | n | n |7 duststm| v| u | o | a | i | a | e | e | i | e | i | e | i | e | | e| m | m | e | n | t | n | g | g |8 smk, hz| r| v | w | x | n | n | d | d | r | d | r | d | r | x | | | | | | | | | | |9 blw snw| | | | | | | | | | | | | | | | 1| 2 | 3 | 4A | 4B | 5 | 6 | 7 | 8 | 9 |10| 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18| 19| 20| 21| 22| 23 | +--+------+------+------+------+---+----+----+----+---------+--+-----+-----+------+------+------+----+----+---+---+---+---+---+------+ |01| 47.7 | 33.2 | 40.5 | 39.9 | 37| 89| 24| 0|1........| 0| 0.01| 0.0| 30.22| 30.03|30.112| 0.1| 0.0|144| 4|ESE| 1| 87| 47 | |02| 51.9 | 43.3 | 47.6 | 47.0 | 45| 93| 17| 0|.........| 0| 0.01| 0.0| 30.22| 30.08|30.136| 0.7| 0.7| 66| 11|ENE| 5| 77| 48 | |03| 48.3 | 43.5 | 45.9 | 45.8 | 44| 92| 19| 0|.........| 0| 0.73| 0.0| 30.16| 29.89|30.006| 2.7| 2.7| 83| 13| E| 7| 74| 34 | |04| 46.1 | 44.5 | 45.3 | 44.9 | 45| 100| 19| 0|.........| 0| 0.54| 0.0| 29.92| 29.80|29.870| 0.9| 0.9| 50| 9|ESE| 4| 71| 21 | |05| 55.0 | 40.9 | 48.0 | 46.7 | 44| 91| 17| 0|.........| 0| 0.00| 0.0| 30.03| 29.88|29.943| 1.0| 0.9|313| 14|NNW| 7|328| 73 | | | | | | | | | | | | | | | | | | | | | | | | | | |06| 57.5 | 37.8 | 47.7 | 46.4 | 39| 77| 17| 0|.........| 0| 0.01| 0.0| 30.15| 30.02|30.079| 0.6| 0.6| 58| 10|NNE| 4| 46| 190 | |07| 48.0 | 38.3 | 43.2 | 42.8 | 39| 87| 22| 0|.........| 0| T | 0.0| 30.10| 29.87|29.999| 0.9| 0.9| 89| 7|ENE| 3|108| 38 | |08| 64.2 | 42.2 | 53.2 | 50.6 | 48| 92| 12| 0|..3......| 0| 0.74| 0.0| 30.05| 29.70|29.837| 2.0| 1.4|360| 24|NNW| 13|326| 46 | |09| 46.5 | 32.9 | 39.7 | 39.1 | 26| 61| 25| 0|.........| 0| 0.00| 0.0| 30.36| 30.05|30.254| 2.3| 2.3| 48| 19| N| 10|337| 189 | |10| 41.2 | 31.3 | 36.3 | 36.4 | 28| 72| 29| 0|...4.....| 0| 0.01| 0.0| 30.37| 30.15|30.278| 0.2| 0.2| 89| 6|SSE| 3| 83| 66 | | | | | | | | | | | | | | | | | | | | | | | | | | |11| 39.2 | 34.6 | 36.9 | 36.9 | 35| 93| 28| 0|...4.....| 0| 0.51| 0.0| 30.16| 29.90|30.018| 0.9| 0.9| 70| 11| N| 4| 23| 14 | |12| 48.3 | 30.0 | 39.2 | 37.4 | 33| 86| 26| 0|.........| 0| 0.03| 0.0| 30.19| 30.03|30.117| 1.2| 1.1| 2| 15|NNW| 6|312| 90 | |13| 59.8 | 27.9 | 43.8 | 43.2 | 36| 77| 21| 0|.2.......| 0| 0.01| 0.0| 30.16| 29.96|30.065| 0.9| 0.9|227| 13|SSW| 5|216| 193 | |14| 69.6 | 35.3 | 52.4 | 46.9 | 39| 75| 12| 0|.........| 0| 0.00| 0.0| 30.28| 29.93|30.049| 2.4| 1.4| 48| 20| NE| 11| 57| 158 | |15| 53.8 | 30.0 | 41.9 | 40.0 | 19| 47| 23| 0|.........| 0| 0.00| 0.0| 30.36| 30.21|30.281| 2.6| 2.5|339| 22|WNW| 13|322| 218 | | | | | | | | | | | | | | | | | | | | | | | | | | |16| 59.0 | 25.3*| 42.2 | 41.8 | 19| 45| 23| 0|.........| 0| 0.00| 0.0| 30.34| 30.20|30.270| 1.0| 1.0|324| 17| NW| 9|302| 213 | |17| 62.7 | 26.6 | 44.7 | 43.6 | 22| 47| 20| 0|.........| 0| 0.00| 0.0| 30.33| 30.19|30.259| 0.2| 0.2| 81| 7| N| 3| 86| 218 | |18| 67.1 | 29.7 | 48.4 | 48.7 | 29| 50| 16| 0|.........| 0| 0.00| 0.0| 30.24| 30.08|30.160| 0.5| 0.5|235| 12|WSW| 4|223| 202 | |19| 59.0 | 47.6 | 53.3 | 52.9 | 47| 82| 11| 0|.........| 0| 0.00| 0.0| 30.09| 29.99|30.040| 0.4| 0.4|234| 9| SW| 3|228| 51 | |20| 67.9 | 53.6 | 60.8 | 58.7 | 54| 84| 4| 0|.........| 0| 0.02| 0.0| 30.05| 29.86|29.962| 0.3| 0.2|224| 8| S| 3|260| 71 | | | | | | | | | | | | | | | | | | | | | | | | | | |21| 78.6*| 44.2 | 61.4*| 62.8 | 48| 67| 3| 0|.........| 0| 0.03| 0.0| 29.89| 29.72|29.794| 2.1| 1.3|291| 19| NW| 10|274| 197 | |22| 50.5 | 37.6 | 44.0 | 43.2 | 36| 75| 20| 0|.........| 0| 0.00| 0.0| 30.01| 29.86|29.935| 2.3| 2.2| 48| 15| NW| 6| 55| 129 | |23| 38.8 | 32.5 | 35.7*| 34.9 | 32| 88| 29| 0|...4.....| 0| 0.42| 0.4| 30.23| 29.95|30.096| 2.5| 1.9| 11| 16| NW| 9|332| 46 | |24| 52.3 | 30.6 | 41.5 | 40.1 | 29| 66| 23| 0|.........| 0| 0.12| 0.0| 30.33| 30.18|30.243| 1.5| 1.4|330| 14| N| 7|326| 229 | |25| 65.0 | 31.0 | 48.0 | 48.0 | 34| 60| 17| 0|.........| 0| 0.00| 0.0| 30.18| 29.85|29.999| 1.1| 1.0|238| 16|SSW| 7|227| 220 | | | | | | | | | | | | | | | | | | | | | | | | | | |26| 58.4 | 40.1 | 49.3 | 48.5 | 39| 70| 16| 0|.........| 0| 0.00| 0.0| 30.18| 29.88|30.012| 4.2| 4.0|324| 26| NW| 15|320| 143 | |27| 66.3 | 33.2 | 49.8 | 49.9 | 33| 58| 15| 0|.........| 0| 0.00| 0.0| 30.22| 30.05|30.133| 0.6| 0.6|336| 12| NW| 6|331| 232 | |28| | | | | | | | | | | | | | | | | | | | | | | | +--+------+------+------+------+---+----+----+----+---------+--+-----+-----+------+------+------+----+----+---+---+---+---+---+------+ | Sum | Sum |------|------|---|----| Ttl| Ttl| |Total|Total| For the month: | ---- | +------+------+------+------+---+----+----+----+ Number of +-----+-----+------+------+------+----+----+---+---+---+---+---+------+ |1502.7| 977.7|------|------|---|----| 508| 0| Days | 3.19| 0.4| 30.37| 29.70|30.072| 1.3| 0.6| 7| 26| NW| 15|320| ---- | +------+------+------+------+---+----+----+----+------------+-----+-----+------+------+------+----+----+---+---+---+---+---+------+ | Avg | Avg | Avg | Mean |Avg| Avg|----|----|Precip | Season Ttl| Date | Date |------|----|----|---| Date | Date | Avg | +------+------+------+------+---+----+----+----+ +-----+-----+------+------+------+----+----+---+-------+-------+------+ | 55.7| 36.2| 45.9 | 45.1 | 36|75.0|----|----|≥.01 Inch 14| 6.01| 0.4| 10 | 8 |------|----|----|---| 26 | 26 | 125| +------+------+------+------+---+----+----+----+------------+-----+-----+------+------+------+----+----+---+-------+-------+------+ | | Season |Snow, Ice | | | | Number of Days | to Date |≥1.0 Inch 0| Greatest in 24 Hours and Dates | Greatest Depth on Ground | +------------------+-----------------+----+----+------------+--------------+-----------------+ of Snow, Ice Pellets or Ice | | Max Temperature | Min Temperature |1916| 2|Thunder 1|Precipitation | Snow, Ice Plts | and Date | +--------+---------+--------+--------+----+----+------------+-------+------+---------+-------+-------------+----------------------+ | ≥90°F | ≤32°F | ≤32°F | ≤0°F |----|----|Heavy Fog 1| 0.80| 3- 4| 0.4 | 23 | 0 | - | +--------+---------+--------+--------+----+----+------------+-------+------+---------+----+--+-------------+----------------------+ | 0 | 0 | 9 | 0 |----|----| Clear 10 Partly Cloudy 2 Cloudy 15 | +--------+---------+--------+--------+----+----+------------------------------------------+ NOTES: Data in column 4A are (MAX+MIN) / 2, whereas data in columns 4B, 5, 6, 15, 16, 23 are means via continuous observations Units are: Temperature=°F, Wind=mph, Pressure=Inches Hg, Precipitation=inches. for 24 hours. Column 5: Dew point is calculated from temperature and humidity and is continuously averaged for 24 hours. Columns 7, 8: Degree Days heating base is 65°F, cooling base is 65°F. Data in columns 9, 10, 12 are entered manually by the station observer. Columns 17-18: Resultant wind is calculated by the vector sum of continuous wind observations. Column 23: Sunshine index is measured in Watts/m^2 and is continuously averaged for 24 hours. Data in columns 4B, 5, 6, 15, 16, 23 are updated continuously, there by achieving a "true" mean.OBSERVATIONS AT 3-HOUR INTERVALS February 2010: Round Rock +--+----+-----+-----+---+---+---+----------+----+-----+-----+---+---+---+----------+----+-----+-----+---+---+---+----------+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | T | | | Wind | | | | T | | | Wind | | | | T | | | Wind | | | | | R | e | | % +--+---+---+ | | R | e | | % +--+---+---+ | | R | e | | % +--+---+---+ | | | | a | m | D | | D| | | | | a | m | D | | D| | | | | a | m | D | | D| | | | | S | P | i | p | e | H | i| | | S | P | i | p | e | H | i| | | S | P | i | p | e | H | i| | | | | u | r | n | e | w | u | r| | | u | r | n | e | w | u | r| | | u | r | n | e | w | u | r| | | | | n | e | f | r | | m | e| | | n | e | f | r | | m | e| | | n | e | f | r | | m | e| | | | | s | s | a | a | P | i | c| S | | s | s | a | a | P | i | c| S | | s | s | a | a | P | i | c| S | | | H| h | s | l | t | o | d | t| p | G | h | s | l | t | o | d | t| p | G | h | s | l | t | o | d | t| p | G | | o| i | u | l | u | i | i | i| e | u | i | u | l | u | i | i | i| e | u | i | u | l | u | i | i | i| e | u | | u| n | r | | r | n | t | o| e | s | n | r | | r | n | t | o| e | s | n | r | | r | n | t | o| e | s | | r| e | e | Rate| e | t | y | n| d | t | e | e | Rate| e | t | y | n| d | t | e | e | Rate| e | t | y | n| d | t | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | FEB 1 | FEB 2 | FEB 3 | | | | | |01| 0|30.19| 0.00| 33| 30| 88|23| 0| 1| 0|30.09| 0.00| 44| 42| 95|07| 0| 2| 0|30.12| 0.00| 46| 42| 86|07| 1| 3| |04| 0|30.16| 0.00| 34| 31| 89|19| 0| 0| 0|30.09| 0.00| 44| 43| 99|06| 0| 2| 0|30.06| 0.00| 45| 41| 87|07| 0| 3| |07| 0|30.14| 0.00| 35| 33| 90|25| 0| 0| 0|30.13| 0.00| 44| 44|100|03| 0| 2| 0|30.06| 0.05| 44| 43| 95|08| 3| 7| |10| 91|30.16| 0.00| 37| 34| 90|09| 0| 1| 113|30.18| 0.00| 47| 47|100|04| 1| 4| 130|30.07| 0.05| 46| 45| 99|08| 4| 10| |13| 107|30.11| 0.00| 41| 39| 90|21| 0| 2| 163|30.15| 0.00| 48| 47| 96|06| 2| 6| 176|29.99| 0.00| 48| 44| 87|09| 4| 12| |16| 77|30.05| 0.00| 48| 41| 78|20| 0| 2| 107|30.12| 0.00| 51| 46| 83|08| 2| 6| 32|29.94| 0.00| 47| 44| 91|08| 3| 7| |19| 0|30.05| 0.00| 45| 41| 87|07| 0| 2| 0|30.14| 0.00| 50| 46| 85|06| 0| 2| 0|29.89| 0.07| 46| 44| 93|08| 5| 5| |22| 0|30.06| 0.00| 44| 42| 92|07| 0| 0| 0|30.16| 0.00| 48| 44| 87|06| 1| 5| 0|29.93| 0.06| 46| 45| 96|08| 2| 7| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | FEB 4 | FEB 5 | FEB 6 | | | | | |01| 0|29.89| 0.00| 45| 45| 99|06| 3| 7| 0|29.89| 0.00| 45| 45|100|32| 2| 4| 0|30.02| 0.00| 41| 38| 91|33| 0| 1| |04| 0|29.85| 0.00| 45| 45|100|03| 1| 5| 0|29.89| 0.00| 45| 45|100|30| 1| 3| 0|30.03| 0.00| 42| 40| 92|33| 0| 1| |07| 0|29.88| 0.00| 45| 45|100|06| 1| 4| 0|29.93| 0.00| 41| 41|100|31| 0| 2| 0|30.10| 0.00| 38| 36| 91|01| 0| 3| |10| 28|29.91| 0.00| 45| 45|100|02| 0| 5| 134|29.98| 0.00| 46| 46|100|28| 2| 6| 439|30.15| 0.00| 48| 39| 72|02| 1| 6| |13| 98|29.86| 0.00| 46| 46|100|05| 0| 4| 114|29.95| 0.00| 50| 48| 94|34| 1| 5| 722|30.10| 0.00| 55| 38| 53|08| 1| 4| |16| 25|29.85| 0.00| 46| 46|100|32| 1| 5| 424|29.92| 0.00| 55| 47| 73|03| 2| 13| 413|30.04| 0.00| 56| 42| 59|08| 3| 6| |19| 0|29.86| 0.00| 45| 45|100|34| 0| 2| 0|29.96| 0.00| 50| 42| 73|33| 0| 0| 0|30.07| 0.00| 49| 41| 74|05| 0| 3| |22| 0|29.90| 0.00| 45| 45|100|33| 0| 4| 0|30.00| 0.00| 43| 38| 85|33| 0| 0| 0|30.10| 0.00| 43| 38| 83|09| 0| 1| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | FEB 7 | FEB 8 | FEB 9 | | | | | |01| 0|30.08| 0.00| 39| 36| 89|03| 1| 3| 0|29.83| 0.00| 48| 47| 94|10| 0| 3| 0|30.06| 0.00| 42| 36| 81|03| 3| 11| |04| 0|30.07| 0.00| 39| 36| 90|07| 1| 5| 0|29.78| 0.00| 52| 51| 97|20| 1| 3| 0|30.12| 0.00| 39| 32| 75|05| 4| 17| |07| 0|30.08| 0.00| 39| 36| 89|07| 1| 5| 0|29.78| 0.00| 53| 53|100|30| 0| 4| 0|30.24| 0.00| 34| 28| 78|05| 3| 19| |10| 91|30.09| 0.00| 41| 37| 86|08| 2| 5| 44|29.79| 0.31| 55| 55|100|21| 0| 3| 485|30.34| 0.00| 38| 23| 54|04| 2| 10| |13| 148|30.00| 0.00| 45| 39| 82|12| 0| 5| 98|29.72| 0.00| 64| 61| 90|22| 2| 6| 751|30.31| 0.00| 44| 20| 39|06| 4| 12| |16| 74|29.92| 0.00| 46| 41| 83|11| 1| 4| 139|29.80| 0.00| 49| 46| 90|34| 3| 14| 450|30.27| 0.00| 46| 19| 35|05| 2| 10| |19| 0|29.90| 0.00| 46| 42| 85|12| 0| 3| 0|29.93| 0.00| 46| 42| 86|00| 4| 11| 0|30.30| 0.00| 40| 24| 54|01| 0| 0| |22| 0|29.88| 0.00| 47| 44| 90|09| 0| 1| 0|30.03| 0.00| 44| 38| 80|00| 5| 18| 0|30.32| 0.00| 34| 25| 70|01| 0| 1| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | FEB 10 | FEB 11 | FEB 12 | | | | | |01| 0|30.32| 0.00| 34| 26| 74|01| 0| 0| 0|30.15| 0.00| 37| 32| 84|13| 0| 1| 0|30.04| 0.00| 35| 34| 97|01| 1| 7| |04| | | | | | | | | | 0|30.08| 0.00| 36| 33| 88|11| 1| 4| 0|30.06| 0.00| 34| 33| 95|33| 2| 7| |07| 0|30.34| 0.00| 31| 25| 78|00| 1| 2| 0|30.01| 0.00| 37| 34| 89|10| 2| 7| 0|30.10| 0.00| 34| 32| 92|33| 0| 6| |10| 179|30.37| 0.00| 37| 26| 63|09| 1| 3| 35|30.02| 0.00| 38| 36| 93|08| 2| 6| 146|30.17| 0.00| 37| 34| 89|35| 1| 7| |13| 188|30.29| 0.00| 41| 26| 56|08| 1| 4| 44|29.94| 0.00| 39| 38| 95|07| 1| 4| 302|30.16| 0.00| 41| 35| 80|02| 1| 10| |16| 104|30.24| 0.00| 40| 30| 68|23| 0| 4| 30|29.92| 0.00| 38| 37| 96|06| 2| 6| 584|30.12| 0.00| 46| 37| 69|35| 3| 7| |19| 0|30.24| 0.00| 37| 31| 79|14| 0| 1| 0|29.99| 0.09| 35| 34| 96|09| 2| 5| 0|30.12| 0.00| 40| 35| 83|09| 0| 2| |22| 0|30.22| 0.00| 37| 32| 83|14| 0| 2| 0|30.01| 0.00| 35| 34| 97|05| 0| 3| 0|30.13| 0.00| 33| 30| 86|09| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | FEB 13 | FEB 14 | FEB 15 | | | | | |01| 0|30.14| 0.00| 29| 27| 89|09| 0| 0| 0|29.97| 0.00| 44| 40| 85|24| 0| 4| 0|30.28| 0.00| 35| 25| 67|04| 3| 13| |04| 0|30.11| 0.00| 28| 25| 90|09| 0| 0| 0|29.94| 0.00| 43| 40| 91|24| 0| 3| 0|30.29| 0.00| 31| 23| 72|32| 2| 6| |07| 0|30.13| 0.00| 32| 31| 94|22| 0| 3| 0|29.96| 0.00| 40| 38| 93|23| 0| 0| 0|30.32| 0.00| 30| 21| 70|28| 0| 5| |10| 255|30.15| 0.00| 41| 41|100|21| 1| 5| 473|29.99| 0.00| 58| 50| 75|24| 2| 6| 517|30.35| 0.00| 43| 21| 41|34| 5| 16| |13| 747|30.07| 0.00| 58| 40| 51|22| 4| 10| 752|29.96| 0.00| 67| 49| 52|28| 1| 6| 807|30.28| 0.00| 52| 13| 21|32| 10| 19| |16| 439|29.98| 0.00| 59| 42| 53|22| 3| 9| 47|30.06| 0.00| 44| 38| 82|05| 8| 19| 485|30.22| 0.00| 53| 13| 20|34| 4| 16| |19| 0|29.98| 0.00| 52| 41| 66|21| 1| 3| 0|30.20| 0.00| 40| 28| 62|03| 4| 17| 0|30.24| 0.00| 43| 18| 37|00| 0| 1| |22| 0|29.99| 0.00| 44| 39| 82|22| 1| 4| 0|30.27| 0.00| 39| 27| 61|04| 2| 14| 0|30.26| 0.00| 36| 19| 51|32| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | FEB 16 | FEB 17 | FEB 18 | | | | | |01| 0|30.26| 0.00| 32| 20| 61|32| 0| 1| 0|30.27| 0.00| 34| 20| 55|34| 0| 0| 0|30.23| 0.00| 36| 26| 66|10| 0| 0| |04| 0|30.28| 0.00| 26| 19| 73|32| 0| 0| 0|30.26| 0.00| 28| 19| 69|34| 0| 0| 0|30.18| 0.00| 34| 25| 71|10| 0| 0| |07| 0|30.31| 0.00| 25| 19| 76|32| 0| 0| 0|30.31| 0.00| 28| 20| 73|33| 0| 1| 0|30.23| 0.00| 31| 24| 76|10| 0| 0| |10| 522|30.33| 0.00| 51| 22| 32|30| 1| 5| 526|30.32| 0.00| 51| 22| 31|03| 0| 5| 526|30.23| 0.00| 57| 32| 38|23| 1| 7| |13| 800|30.27| 0.00| 58| 17| 20|28| 7| 12| 809|30.28| 0.00| 56| 22| 26|06| 0| 3| 814|30.16| 0.00| 66| 30| 26|30| 1| 9| |16| 457|30.22| 0.00| 57| 14| 18|34| 3| 15| 483|30.20| 0.00| 60| 23| 24|07| 0| 3| 320|30.08| 0.00| 64| 30| 28|24| 1| 6| |19| 0|30.22| 0.00| 47| 19| 33|34| 0| 1| 0|30.21| 0.00| 51| 26| 37|10| 0| 3| 0|30.09| 0.00| 55| 29| 37|32| 0| 2| |22| 0|30.26| 0.00| 39| 19| 43|34| 0| 0| 0|30.24| 0.00| 42| 26| 54|10| 0| 0| 0|30.10| 0.00| 50| 32| 50|25| 0| 3| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+MAXIMUM SHORT DURATION PRECIPITATION +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Time Period (minutes) | 5 | 10 | 15 | 20 | 30 | 45 | 60 | 80 | 100 | 120 | 150 | 180 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Precipitation | 0.12 | 0.18 | 0.20 | 0.21 | 0.26 | 0.30 | 0.31 | 0.31 | 0.34 | 0.36 | 0.36 | 0.36 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Date | 08 | 08 | 08 | 08 | 08 | 08 | 08 | 08 | 08 | 08 | 08 | 08 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Time | 1347 | 1349 | 1351 | 1351 | 1408 | 1414 | 1414 | 1036 | 1036 | 1036 | 1036 | 1036 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ The precipitation amounts for the indicated time intervals may occur at any time during the month. The time indicated is the ending time of the interval. Date and time are not entered for trace amounts.OBSERVATIONS AT 3-HOUR INTERVALS February 2010: Round Rock +--+----+-----+-----+---+---+---+----------+----+-----+-----+---+---+---+----------+----+-----+-----+---+---+---+----------+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | T | | | Wind | | | | T | | | Wind | | | | T | | | Wind | | | | | R | e | | % +--+---+---+ | | R | e | | % +--+---+---+ | | R | e | | % +--+---+---+ | | | | a | m | D | | D| | | | | a | m | D | | D| | | | | a | m | D | | D| | | | | S | P | i | p | e | H | i| | | S | P | i | p | e | H | i| | | S | P | i | p | e | H | i| | | | | u | r | n | e | w | u | r| | | u | r | n | e | w | u | r| | | u | r | n | e | w | u | r| | | | | n | e | f | r | | m | e| | | n | e | f | r | | m | e| | | n | e | f | r | | m | e| | | | | s | s | a | a | P | i | c| S | | s | s | a | a | P | i | c| S | | s | s | a | a | P | i | c| S | | | H| h | s | l | t | o | d | t| p | G | h | s | l | t | o | d | t| p | G | h | s | l | t | o | d | t| p | G | | o| i | u | l | u | i | i | i| e | u | i | u | l | u | i | i | i| e | u | i | u | l | u | i | i | i| e | u | | u| n | r | | r | n | t | o| e | s | n | r | | r | n | t | o| e | s | n | r | | r | n | t | o| e | s | | r| e | e | Rate| e | t | y | n| d | t | e | e | Rate| e | t | y | n| d | t | e | e | Rate| e | t | y | n| d | t | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | FEB 19 | FEB 20 | FEB 21 | | | | | |01| 0|30.08| 0.00| 50| 37| 62|22| 0| 2| 0|30.03| 0.00| 55| 52| 91|24| 0| 2| 0|29.84| 0.00| 58| 55| 91|22| 0| 4| |04| 0|30.02| 0.00| 49| 41| 73|06| 0| 4| 0|30.00| 0.00| 54| 52| 93|20| 0| 1| 0|29.75| 0.00| 57| 56| 94|20| 0| 4| |07| 0|30.06| 0.00| 48| 44| 85|27| 0| 2| 0|30.01| 0.00| 54| 52| 94|10| 0| 1| 0|29.81| 0.00| 58| 56| 96|20| 0| 0| |10| 88|30.08| 0.00| 49| 47| 93|19| 1| 3| 100|30.03| 0.00| 55| 54| 96|25| 0| 1| 244|29.81| 0.00| 63| 62| 95|20| 1| 10| |13| 290|30.03| 0.00| 57| 52| 84|27| 1| 5| 315|29.97| 0.00| 64| 56| 75|23| 0| 5| 809|29.76| 0.00| 78| 40| 26|29| 8| 15| |16| 58|30.00| 0.00| 59| 51| 76|23| 0| 4| 65|29.91| 0.00| 66| 53| 64|26| 1| 6| 483|29.72| 0.00| 76| 35| 23|25| 6| 16| |19| 0|30.01| 0.00| 57| 52| 86|23| 1| 3| 0|29.89| 0.00| 62| 54| 73|25| 0| 2| 0|29.78| 0.00| 63| 41| 44|05| 2| 5| |22| 0|30.03| 0.00| 56| 52| 89|24| 0| 3| 0|29.89| 0.00| 59| 54| 84|05| 0| 3| 0|29.89| 0.00| 50| 40| 70|05| 0| 3| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | FEB 22 | FEB 23 | FEB 24 | | | | | |01| 0|29.87| 0.00| 43| 38| 85|05| 2| 6| 0|29.97| 0.00| 38| 31| 77|04| 2| 9| 0|30.22| 0.00| 34| 30| 87|27| 1| 6| |04| 0|29.87| 0.00| 43| 38| 85|02| 3| 10| 0|29.98| 0.00| 39| 33| 78|04| 3| 6| 0|30.22| 0.00| 32| 28| 86|32| 3| 7| |07| 0|29.94| 0.00| 42| 37| 82|04| 2| 10| 0|30.03| 0.04| 36| 32| 87|04| 3| 9| 5|30.28| 0.00| 31| 27| 86|32| 3| 7| |10| 146|29.99| 0.00| 43| 36| 76|06| 2| 6| 33|30.10| 0.00| 33| 31| 94|02| 1| 9| 541|30.32| 0.06| 40| 31| 70|00| 1| 6| |13| 452|29.94| 0.00| 47| 36| 64|06| 2| 7| 278|30.12| 0.04| 33| 32| 94|06| 1| 3| 837|30.28| 0.00| 49| 30| 48|32| 2| 9| |16| 221|29.91| 0.00| 48| 35| 62|04| 3| 11| 109|30.13| 0.00| 34| 32| 92|34| 3| 13| 510|30.22| 0.00| 51| 28| 42|34| 1| 5| |19| 0|29.94| 0.00| 41| 33| 73|06| 3| 5| 0|30.18| 0.00| 34| 31| 92|32| 3| 14| 0|30.20| 0.00| 46| 27| 47|32| 0| 1| |22| 0|29.98| 0.00| 40| 33| 76|05| 4| 9| 0|30.23| 0.00| 33| 31| 90|32| 5| 14| 0|30.20| 0.00| 38| 27| 66|32| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | FEB 25 | FEB 26 | FEB 27 | | | | | |01| 0|30.16| 0.00| 33| 25| 73|32| 0| 0| 0|29.91| 0.00| 48| 42| 80|21| 0| 1| 0|30.18| 0.00| 40| 34| 80|32| 2| 7| |04| 0|30.08| 0.00| 31| 25| 77|32| 0| 0| 0|29.88| 0.00| 45| 41| 88|21| 0| 2| 0|30.16| 0.00| 36| 32| 84|27| 1| 4| |07| 5|30.08| 0.00| 33| 27| 80|32| 0| 2| 0|29.93| 0.00| 47| 45| 93|25| 0| 4| 7|30.18| 0.00| 33| 30| 87|32| 0| 1| |10| 575|30.09| 0.00| 47| 32| 55|22| 3| 10| 545|30.00| 0.00| 54| 38| 55|29| 7| 19| 568|30.20| 0.00| 52| 35| 51|07| 0| 4| |13| 828|29.97| 0.00| 61| 35| 38|23| 3| 11| 499|30.01| 0.00| 57| 38| 49|33| 11| 20| 842|30.15| 0.00| 63| 36| 37|00| 1| 6| |16| 510|29.86| 0.00| 64| 37| 37|22| 2| 11| 107|30.04| 0.00| 50| 36| 59|30| 7| 22| 513|30.07| 0.00| 66| 32| 28|35| 2| 12| |19| 0|29.88| 0.00| 58| 39| 49|22| 0| 2| 0|30.11| 0.00| 48| 35| 62|34| 3| 18| 0|30.06| 0.00| 59| 32| 37|30| 0| 0| |22| 0|29.92| 0.00| 52| 42| 68|21| 0| 2| 0|30.17| 0.00| 44| 35| 71|34| 1| 11| 0|30.09| 0.00| 49| 34| 56|07| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | FEB 28 | | | | | | | |01| 0|30.05| 0.00| 46| 34| 61|23| 0| 0| | | |04| 0|30.02| 0.00| 41| 32| 70|23| 0| 0| | | |07| 9|30.04| 0.00| 38| 32| 78|23| 0| 0| | | |10| 555|30.03| 0.00| 61| 40| 46|26| 1| 7| | | |13| 731|29.90| 0.00| 67| 35| 31|34| 2| 10| | | |16| 315|29.78| 0.00| 65| 41| 41|27| 3| 9| | | |19| 0|29.79| 0.00| 58| 44| 60|13| 0| 6| | | |22| 0|29.87| 0.00| 56| 47| 73|09| 1| 5| | | +--+----+-----+-----+---+---+---+--+---+---+---------------------------------------+---------------------------------------+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | +------------------------------------------+---------------------------------------+---------------------------------------+WEATHER NOTES SUMMARY BY HOURS +--+-----------------------------+---------+ Wind Direction: Directions are those from which the wind is blowing, | | Averages | | indicated in tens of degrees from true North: i.e., 09 for East, 18 for | +----+------+---+---+---+-----+Resultant| South, 27 for West, and 00 or 36 for North. | | | | | | | | | Wind Speed: The observed one-minute average speed in miles-per-hour. | | | | T | | | | Wind | Wind Gust: The maximum instantaneous wind speed for the ten minute-period | | | | e | | % | W +----+----+ preceding the observation. | | | | m | D | | i | D | | Rainfall Rate: The instantaneous rainfall rate at time of observation, | | S | P | p | e | H | n | i | | calculated by timing consecutive 0.01" pulses from the electronic rain | | u | r | e | w | u | d | r | | gauge and interpolating this rate for one hour. | | n | e | r | | m | | e | | | | s | s | a | P | i | S | c | S | | H| h | s | t | o | d | p | t | p | | o| i | u | u | i | i | e | i | e | | u| n | r | r | n | t | e | o | e | | r| e | e | e | t | y | d | n | d | +--+----+------+---+---+---+-----+----+----+ |01| 0|30.056| 43| 36| 80| 0.7| 04 | 0.5| |04| 0|30.028| 41| 36| 83| 0.8| 02 | 0.5| |07| 1|30.064| 40| 36| 86| 0.7| 05 | 0.5| |10| 280|30.089| 48| 39| 73| 1.5| 34 | 0.4| |13| 454|30.033| 54| 38| 60| 2.3| 33 | 1.1| |16| 249|29.993| 54| 38| 60| 2.3| 35 | 0.8| |19| 0|30.013| 49| 38| 68| 1.0| 05 | 0.6| |22| 0|30.045| 46| 38| 76| 0.8| 03 | 0.5| +--+----+------+---+---+---+-----+----+----+HOURLY PRECIPITATION (Water Equivalent)February 2010: Round Rock ---+-----------------------------------------------------------+-----------------------------------------------------------+--- | | | D| A.M. Hour Ending at | P.M. Hour Ending at |D a| | |a t+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+t e| 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 |e ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+--- 01| | | | | | | | | | | | | | | | | | | | | | | |0.01|01 02| | |0.01| | | | | | | | | | | | | | | | | | | | | |02 03| | | |0.01|0.02|0.08|0.09|0.08|0.11|0.04|0.01| | |0.01|0.04|0.02|0.02|0.01|0.03| |0.02|0.06|0.07|0.01|03 04|0.03|0.01|0.02|0.02|0.01| |0.02| |0.01|0.02|0.11|0.01| |0.01|0.02|0.01|0.18|0.05|0.01| | | | | |04 05| | | | | | | | | | | | | | | | | | | | | | | | |05 | | | | | | | | | | | | | | | | | | | | | | | | | 06| | | |0.01| | | | | | | | | | | | | | | | | | | | |06 07| | | | | | | | | | | | | | | | | | | | | | | | |07 08|0.02|0.01| | |0.01|0.02|0.01| |0.02|0.28|0.06| | |0.23|0.08| | | | | | | | | |08 09| | | | | | | | | | | | | | | | | | | | | | | | |09 10| | | | | | | | | | | | | |0.01| | | | | | | | | | |10 | | | | | | | | | | | | | | | | | | | | | | | | | 11| |0.01|0.02| | | | |0.01|0.05|0.01| |0.01| |0.02|0.01|0.01|0.05|0.10|0.11|0.06|0.01|0.01|0.01|0.01|11 12|0.01| | | |0.01| | | | |0.01| | | | | | | | | | | | | | |12 13| | | | | | | |0.01| | | | | | | | | | | | | | | | |13 14| | | | | | | | | | | | | | | | | | | | | | | | |14 15| | | | | | | | | | | | | | | | | | | | | | | | |15 | | | | | | | | | | | | | | | | | | | | | | | | | 16| | | | | | | | | | | | | | | | | | | | | | | | |16 17| | | | | | | | | | | | | | | | | | | | | | | | |17 18| | | | | | | | | | | | | | | | | | | | | | | | |18 19| | | | | | | | | | | | | | | | | | | | | | | | |19 20| | | | | | | | |0.01|0.01| | | | | | | | | | | | | | |20 | | | | | | | | | | | | | | | | | | | | | | | | | 21| | | | | | |0.03| | | | | | | | | | | | | | | | | |21 22| | | | | | | | | | | | | | | | | | | | | | | | |22 23| | | | | | |0.10|0.01|0.05|0.03|0.02|0.01|0.02|0.05|0.04|0.03|0.03|0.01|0.01| |0.01| | | |23 24| | | | | | | | | |0.02|0.04|0.04|0.02| | | | | | | | | | | |24 25| | | | | | | | | | | | | | | | | | | | | | | | |25 | | | | | | | | | | | | | | | | | | | | | | | | | 26| | | | | | | | | | | | | | | | | | | | | | | | |26 27| | | | | | | | | | | | | | | | | | | | | | | | |27 28| | | | | | | | | | | | | | | | | | | | | | |0.04| |28 ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+--- Sum|0.06|0.03|0.05|0.04|0.05|0.10|0.25|0.11|0.25|0.42|0.24|0.07|0.04|0.33|0.19|0.07|0.28|0.17|0.16|0.06|0.04|0.07|0.12|0.03|Sum ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+--- During a frozen precipitation event, hourly precipitation totals may not be recorded. In this case, daily amounts are typically entered in the last column (hour ending at 12 A.M.)